"My phone rings and I pick up the phone and it's her and she can't articulate a word," Theresa Kelly said.

Lavinia drizzled the Dorito's she bought at the gas station on April 21 with nacho cheese sauce from the deli area. Sacramento County health investigators have linked the multiple causes to the store.

Lavinia Kelly's three kids and the rest of her family have watched her struggle to regain even the slightest function as the toxins she swallowed attacked her nerve endings. She's now spending her third week in intensive care.

"I've never seen my sister not have function of her body or be able to communicate," Theresa Kelly said.

The Kelly family has filed suit against the gas station for negligence.